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Avian Male Reproductive Tract - Anatomy & Physiology (view source)
Revision as of 13:50, 4 July 2008
, 13:50, 4 July 2008→Testes
* Dormant testes light brown/yellow in colour, turn white when sexually active.
* Dormant testes light brown/yellow in colour, turn white when sexually active.
** In some psittacine species, immature or dormant testes may appear black due to melanocytes located in the interstitium.
** In some psittacine species, immature or dormant testes may appear black due to melanocytes located in the interstitium.
* '''Semniferous tubules''' produce '''sperm''' from the epithelium.
* Interstitial '''Leydig cells''' lie between semniferous tubules.
* Interstitial '''Leydig cells''' lie between semniferous tubules.
* Tunical Albiguinea thinner thsn in mammals.
* '''No Pampiniform plexus'''.
* '''Epididymis is small and can be considered absent'''. '''Sperm maturation occurs in the Vas Deferens'''.
* Vas Deferens closely associated with the Ureter in the dorsomedial midline coelom, distinguished by its zig-zag appearance.
* Vas Deferens enters dorsal wall of the Urodeum.
* '''No accessory sex glands'''.
== Phallus ==
== Phallus ==